Lewis hallock nash



(No Model.)

L. H. NASH.

WATER METER. No. 527,537. Patented Oct. 16, 1894.v

ZI/v'nesse-s l UNITED STATES N` PATENT OEEICE.

LEWIS HALLOCK NASH, `OE SOUTH NORWALK, CONNECTICUT, ASSIGNOR TO THE NATIONAL METER COMPANY, VOE NEW YORK, N. Y.

`WATER-METER..

SPECIFICATION forming part of Letters Patent No. 527,537, dated October 16, 1894.

Original applioation'led July 23,1891, Serial 110.400,440. Divided and this application tiled Novembr'Z. 1893. Serial No.

. 489,832. (No model.)

To @ZZ whom t may concern:

Be it known that I, LEwIs HALLooK NASH, a citizen of the United States, residing at South Norwalk, in the countyof Fairfield and State of Connecticut, have invented certain new and useful Improvements in Water-Meters, of which the following is a specification.

My present invention consists of certain novel parts and combinations of parts specifically pointed out in the claim concluding this specification. y i

For the purpose of informing those skilled in the art of the nature of my invention I have in the accompanying,` drawing shown a meter involving the same in the form which is at present preferred by me, which read in connection with the following description will enable persons skilled in the art to make and use the same; but it will be understood that my invention is not limited to the precise forms shown and that various modications may be adopted without exceeding the scope of the claim.

,The following is a description of the struct- `ure illustrated in said drawing.

A B is a meter case of well known general form. C is a shaft by which the motion of the piston is communicated to the registering i mechanism. The case is made of metal and ber, lignum vitae, vulcanized ber, &c. `55

preferably of a non-corrosive material, such as bronze.

E E are the seats of the ball of the piston made of a non-metallic material, as hardIrubprefer to make these seats removably attached to the case so they can be replaced when damaged or worn out.

`have broadly, but not specifically claimed such structure.

The disks of commercial nutating meter pistons heretofore have been made comparatively fragile and liable to break. By making the disk of metal I altogether avoid this difficulty. However, if both piston and case were made entirely of metal the friction and wear resulting would make the structure of little or no value asa practical water meter. As the principal friction surfaces are at the ball of the piston and its seat in the case by making the ball of metal and its seat in the caseof anon-metallic material 'the friction and wear become very slight.

In the foregoing specification I have inci dentally referred to some of the modifications which may be adopted in the practice of my invention, but I have not endeavored `to specify them all, and I desire it to be distinctly understood that mention by me of some modifications is not in any way intended to exclude others not referred to but which are within the spirit and scope of my invention.

All the details illustrated and above described are not essential to the several feai tures of my invention separately considered. This `will be indicated in the concluding claim where the omission of an element or the omission of reference to the detailed features of the elements mentioned is intended to be a formal declaration of the fact that the omitted elements or features are not essential to the invention therein covered.

What I claim is- In a water meter, the combination of a piston composed of a ball and disk, both made of metal with a case made of metal and a seat for the ball made of nonfmetallic material.

LEWIS HALLOCK NASH.

Witnesses:

J. EDGAR BULL, M. WILSON. 

